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Updated: May 17, 2025

Co-localizing Kelvin Probe Force Microscopy with Other Microscopies and Spectroscopies: Selected Applications in Corrosion Characterization of Alloys

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Structural engineering of MXenes for enhanced magnesium ion diffusion: a computational study.

Mingxiao Ma¹, Xiangyu Yao¹, Jianglong Wang¹

¹Key Laboratory of Optic-Electronic Information and Materials of Hebei Province, Hebei Research Center of the Basic Discipline for Computational Physics, College of Physics Science and Technology, Hebei University Baoding 071002 China 16632719716@163.com rqlian@126.com.

|May 16, 2025

Summary

This study explores magnesium-ion (Mg2+) storage in MXenes. Nitrogen doping and transition metal substitution significantly reduce Mg2+ diffusion barriers, enabling high-performance energy storage applications.

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Fabrication of Ti3C2 MXene Microelectrode Arrays for In Vivo Neural Recording

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Published on: February 12, 2020

Area of Science:

Materials Science
Electrochemistry
Computational Chemistry

Background:

MXenes possess unique layered structures crucial for ion storage.
Efficient magnesium-ion (Mg2+) battery materials are needed for advanced energy storage.

Purpose of the Study:

Investigate Mg2+ storage and diffusion in Ti3C2O2 and its derivatives.
Explore the impact of doping and substitution on MXene performance for Mg2+ batteries.

Main Methods:

Theoretical calculations were employed to study Mg2+ behavior.
Analysis included diffusion barriers, electrostatic interactions, and voltage profiles.

Main Results:

Ti3C2O2 showed high Mg2+ diffusion barriers (0.81 eV).
AA-stacking and nitrogen doping (Ti3C2O1.78N0.22) reduced barriers to 0.27 eV.
Nb3C2N2 exhibited an ultralow barrier (0.23 eV) and dual cathode/anode functionality.

Conclusions:

Optimizing MXene structure and composition enhances Mg2+ diffusion.
Nitrogen doping and transition metal substitution are effective strategies for high-performance MXene-based batteries.
Nb3C2N2 shows promise as a versatile electrode material for Mg2+ batteries.